Home / 2,680.59-4,020.89-1,381.17

Finding the Fourth Proportional to 2,680.59, 4,020.89 and 1,381.17

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Solution

The fourth proportional to 2,680.59, 4,020.89 and 1,381.17 is: 2,071.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,680.59 : 4,020.89 = 1,381.17 : x
  2. Step 2: Convert to fraction form
    2,680.59/4,020.89 = 1,381.17/x
  3. Step 3: Cross multiply
    2,680.59x = 4,020.89 × 1,381.17
  4. Step 4: Simplify right side
    2,680.59x = 5,553,525.74
  5. Step 5: Solve for x
    x = 5,553,525.74/2,680.59
  6. Step 6: Final answer
    x = 2,071.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.